Which of the following statements about the movement of toxic chemicals and radiation in water are TRUE? (Select the three correct answers)A.Nearly all substances that have a charge will dissolve in water.B.Metals are too heavy to be transported by water.C.Pollutants that dissolve in water are filtered out before impacting the quality of household drinking water.D.Precipitation can cause nitrogen and phosphorus fertilizers to enter various of water bodies of water.E.Iodine-131 is a radioactive pollutant that can be released from nuclear accidents and travel long distances in water.
Question
Which of the following statements about the movement of toxic chemicals and radiation in water are TRUE? (Select the three correct answers)A.Nearly all substances that have a charge will dissolve in water.B.Metals are too heavy to be transported by water.C.Pollutants that dissolve in water are filtered out before impacting the quality of household drinking water.D.Precipitation can cause nitrogen and phosphorus fertilizers to enter various of water bodies of water.E.Iodine-131 is a radioactive pollutant that can be released from nuclear accidents and travel long distances in water.
Solution
The three correct answers are:
A. Nearly all substances that have a charge will dissolve in water. This is true because water is a polar molecule, meaning it has a positive and negative end. This allows it to attract and dissolve other charged substances.
D. Precipitation can cause nitrogen and phosphorus fertilizers to enter various bodies of water. This is also true. When it rains, the water can carry these fertilizers from the land into nearby bodies of water.
E. Iodine-131 is a radioactive pollutant that can be released from nuclear accidents and travel long distances in water. This is true as well. Iodine-131 is a byproduct of nuclear fission and can be released into the environment during a nuclear accident. It is soluble in water, which allows it to travel long distances.
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